Deoxyribonucleic acid (DNA)

Deoxyguanosine kinase deficiency is mainly manifested by hepatic and neurological damage, hence it belongs to the hepatocerebral form of mitochondrial deoxyribonucleic acid depletion syndrome. The association between deoxyguanosine kinase deficiency and recurrent spontaneous pneumothorax has not currently been reported.

4p vitiki 30-01-2024 3 2   Download

Oxaliplatin is a chemotherapeutic agent with direct toxic action on deoxyribonucleic acid (DNA), which is known to cause an arrest in its synthesis and inducing cell death. It is a crucial medication for colorectal carcinoma, and in combination with other medications has demonstrated to exhibit synergism, managing to increase patients’ survival, especially when compared to monotherapy with 5-fluoracil.

3p viintuit 26-09-2023 4 0   Download

We examined the properties of the nanocomposite γ-Fe2O3@Chi@Pani as an adsorbent of deoxyribonucleic acid (DNA). As a model system, we used an aqueous solution of salmon sperm DNA, whose decreasing concentration was followed by monitoring the 260 nm UV–vis absorption.

9p vihermione 06-01-2023 7 2   Download

In this study, to enhance diagnostic efficiency, we focus on the effect of ion concentration polarization (ICP), an electroosmotic (EO) flow, electrophoretic (EP) velocity, and the selective membrane length upon the DNA preconcentration. The study is conducted using the direct simulation of the ions and DNA transport in the electrokinetic system.

6p vimelindagates 18-07-2022 9 2   Download

Moxifloxacin (MOX) is a fourth-generation synthetic fluoroquinolone antibacterial agent with many important therapeutic properties. Fluorescence quenching was used to study the interaction of MOX with calf thymus DNA (ctDNA) in aqueous solution. As the most common genetic material of various biosomes in nature, deoxyribonucleic acid (DNA) plays a key role in different kinds of vital processes including gene expression, mutagenesis, cell death, etc.

8p langthannam 29-12-2021 8 0   Download

The metal complexes are retained on resin at pH 6.0 and eluted with 1.0 mol L −1 HCl in acetone in both methods. After the optimum conditions were determined, the methods were applied to seawater, stream water, rice, lentil, tea, tobacco, bulgur, chickpea, wheat, red pepper, black pepper, peppermint, and dried eggplant samples in order to determine the levels of copper and cadmium.

13p langthannam 29-12-2021 8 0   Download

Novel, nonperipherally tetrasubstituted cationic metal-free and metallophthalocyanines (Zn, In) were synthesized in the present study. The binding constants, the disappearance of quenching effect of all cationic phthalocyanines on the fluorescence intensity of SYBR Green–disodium salt of deoxyribonucleic acid (DNA) from calf thymus complex, and the changes in Tm of double helix DNA with thermal denaturation profile were investigated by UV-Vis and fluorescence spectrophotometric methods.

22p tudichquannguyet 29-11-2021 8 1   Download

Different methods available for extraction of plant genomic DNA suffers from one or more drawbacks including compromised quality, quantity and many more. The extraction of high-quality DNA Simarouba glauca DC is notoriously troublesome due to the high contents of polysaccharides and different secondary metabolites. Herein, we aimed to develop a modified CTAB extraction method to isolate DNA from tissues containing high levels of polysaccharides.

12p chauchaungayxua11 23-03-2021 15 2   Download

The molecular recognition based on the complementary base pairing of deoxyribonucleic acid (DNA) is the fundamental principle in the fields of genetics, DNA nanotechnology and DNA computing. We present an exhaustive DNA sequence design algorithm that allows to generate sets containing a maximum number of sequences with defined properties.

17p viwyoming2711 16-12-2020 15 1   Download

In recent times, the application of deoxyribonucleic acid (DNA) has diversified with the emergence of fields such as DNA computing and DNA data embedding. DNA data embedding, also known as DNA watermarking or DNA steganography, aims to develop robust algorithms for encoding non-genetic information in DNA.

16p viwyoming2711 16-12-2020 13 1   Download

A simple, rapid, safe and cost effective DNA extraction method is an all time need for efficient molecular screening of fungus using polymerase chain reaction (PCR). A number of protocols are now available to suit recovery of DNA from different fungi. But, only a few are universally used for all fungal origin. In this pursuit, the authors presented a detailed review of the status of fungal DNA isolation using different methods.

10p chauchaungayxua6 26-06-2020 24 1   Download

Cytomegalovirus infections are endemic worldwide. The most frequently used methods for detecting antibodies in developing world are the Enzyme Linked Immunosorbent Assay. The polymerase chain reaction is a molecular biology technique in which the production of large amounts of specific deoxyribonucleic acid fragments is induced from very low concentrations of complex substrates allowing the detection of very low amounts of viral particles.

6p nguathienthan5 04-06-2020 8 1   Download

This paper described the covalent attachment method to immobilize Deoxyribonucleic acid (DNA) sequences on surface of DNA sensor which was used to determine herbicide tolerance transgenic of soybean. The probe sequence was (5’GCCATCGTTGAAGATGCCTCTGCC-3’) which can hybridize with the CaMV 35S promoter of Roundup Ready soybean that was attached onto the surface of sensor by means of 3-AminoPropyl Triethoxy-Silane (APTS). The DNA sequence bindings were identified by the FTIR spectra. The morphology of attached – DNA sequences onto that was investigated by atomic force microscopy (AFM).

8p 12120609 01-06-2020 8 1   Download

Các mẫu huyết thanh chứa virus viêm gan siêu vi B (hepatitis B virus, HBV) được dùng như mẫu sinh học để khảo sát khả năng tách chiết DNA (deoxyribonucleic acid) theo kích thước và lượng hạt nano sử dụng, được thực hiện trong nghiên cứu này. Hạt nano Fe3O4 được tổng hợp bằng phương pháp đồng kết tủa (co-precipitation) có kích thước khoảng 10 nm với độ bão hòa từ 60,02 emu/g. Sử dụng phương pháp dung môi nhiệt (solvothermal) với thời gian tổng hợp khác nhau thu được các kích thước hạt nano Fe3O4 khoảng 32, 60 và 100 nm với độ bão hòa từ tương ứng 88,82; 83,69 và 80,29 emu/g.

10p gildur 30-11-2019 35 1   Download

In this study, the sensitivies of 21 strains of Bacillus sphaericus to 20 different antibiotics were determined with the antibiotic disc susceptibility test. By measuring the diameters of the inhibition zones in terms of millimetres, the obtained values were analysed using the SPSS for Windows package and classifications were made. With these analyses, 21 strains were clustered into 5 groups.

9p vitamix 15-02-2019 22 0   Download

Dấu vân tay DNA 1. DNA DNA (Deoxyribonucleic acid) là chất hoá học góp phần chính tạo nên nhiễm sắc thể. Một phần nhất định của nhiễm sắc thể quy định cho một tính trạng được gọi là một gen. Về mặt cấu trúc DNA là một chuỗi xoắn kép bao gồm hai sợi đơn xoắn quanh nhau. Mỗi sợi chứa một trình tự các base (còn được gọi là nucleotide).

15p butmauvang 29-08-2013 96 7   Download

Dấu vân tay DNA 1. DNA DNA (Deoxyribonucleic acid) là chất hoá học góp phần chính tạo nên nhiễm sắc thể. Một phần nhất định của nhiễm sắc thể quy định cho một tính trạng được gọi là một gen. Về mặt cấu trúc DNA là một chuỗi xoắn kép bao gồm hai sợi đơn xoắn quanh nhau. Mỗi sợi chứa một trình tự các base (còn được gọi là nucleotide).

9p butmauvang 29-08-2013 171 12   Download

Genetic origins of amino acids 1.1 Constituents and organisation of DNA DNA (deoxyribonucleic acid) is the genetic coding scheme used by all living organisms to pass on the hereditary programme to the next generation. DNA consists of two cross-linked polynucleotide chains, having an overall length of about 2 metres, which, for eukaryotes, is stored within the nucleus of a cell. The nucleus occupies about 10% of the cell volume and is isolated from the cytoplasm by the nuclear envelope, which consists of inner and outer bi-layer lipid membranes.

36p tuanloc_do 04-12-2012 50 4   Download

Colin Munro MacLeod is recognized as one of the founders of molecular biology for his research concerning the role of deoxyribonucleic acid (DNA) in bacteria. Along with his colleagues Oswald Avery and Maclyn McCarty, MacLeod conducted experiments on bacterial transformation which indicated that DNA was the active agent in the genetic transformation of bacterial cells. His earlier research focused on the causes of pneumonia and the development of serums to treat it.

366p ozon_ozon 04-05-2012 103 16   Download

Nhớ lại từ chương 3 rằng các hướng dẫn cho sinh sản và quá trình trao đổi chất trong các sinh vật được chứa trong các axit nucleic, đó là các phân tử lớn biopolymeric bao gồm các đơn vị nucleotide gồm một đường, một cơ sở đạm, và một nhóm phosphate. Có hai loại axit nucleic. Đầu tiên trong số này là deoxyribonucleic acid (DNA), trong đó đường 2deoxyribose và các căn cứ có thể là thymine, adenine, guanine, và cytosine. Loại thứ hai của axit nucleic là axit ribonucleic (RNA), trong đó đường ribose và các căn cứ...

15p chimungdauhoi 17-12-2011 54 5   Download